Test [rgb] 🎨

3 files changed, 32 insertions, 7 deletions

diff --git a/tests/ref/rgb.png b/tests/ref/rgb.png
new file mode 100644
index 00000000..e394ccf1
--- /dev/null
+++ b/tests/ref/rgb.png
diff --git a/tests/typ/rgb.typ b/tests/typ/rgb.typ
new file mode 100644
index 00000000..44d87819
--- /dev/null
+++ b/tests/typ/rgb.typ
@@ -0,0 +1,24 @@
+// Test the `rgb` function.
+
+// Check the output.
+[rgb: 0.0, 0.3, 0.7] [val: #004db3]
+
+// Alpha channel.
+[rgb: 1.0, 0.0, 0.0, 0.5]
+
+// Value smaller than 0.0 and larger than 1.0
+[rgb: -30, 15.5, 0.5]
+
+// Missing blue component.
+[rgb: 0, 1]
+
+// Missing all components.
+[rgb]
+
+// error: 4:23-4:26 unknown function
+// error: 10:7-10:10 should be between 0.0 and 1.0
+// error: 10:12-10:16 should be between 0.0 and 1.0
+// error: 13:7-13:11 missing argument: blue component
+// error: 16:5-16:5 missing argument: red component
+// error: 16:5-16:5 missing argument: green component
+// error: 16:5-16:5 missing argument: blue component
diff --git a/tests/typeset.rs b/tests/typeset.rs
index 5f108585..01576cf0 100644
--- a/tests/typeset.rs
+++ b/tests/typeset.rs
@@ -290,15 +290,16 @@ fn draw_text(canvas: &mut Canvas, pos: Point, env: &Env, shaped: &Shaped) {
         let mut builder = WrappedPathBuilder(PathBuilder::new());
         face.outline_glyph(glyph, &mut builder);
 
-        let path = builder.0.finish().unwrap();
-        let placed = path
-            .transform(&Transform::from_row(scale, 0.0, 0.0, -scale, x, y).unwrap())
-            .unwrap();
+        if let Some(path) = builder.0.finish() {
+            let placed = path
+                .transform(&Transform::from_row(scale, 0.0, 0.0, -scale, x, y).unwrap())
+                .unwrap();
 
-        let mut paint = Paint::default();
-        paint.anti_alias = true;
+            let mut paint = Paint::default();
+            paint.anti_alias = true;
 
-        canvas.fill_path(&placed, &paint, FillRule::default());
+            canvas.fill_path(&placed, &paint, FillRule::default());
+        }
     }
 }